CN112152415B - Power generation structure and door magnetic switch - Google Patents
Power generation structure and door magnetic switch Download PDFInfo
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- CN112152415B CN112152415B CN202010924927.XA CN202010924927A CN112152415B CN 112152415 B CN112152415 B CN 112152415B CN 202010924927 A CN202010924927 A CN 202010924927A CN 112152415 B CN112152415 B CN 112152415B
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- 238000010248 power generation Methods 0.000 title claims abstract description 42
- 230000006698 induction Effects 0.000 claims description 17
- 238000005452 bending Methods 0.000 abstract description 15
- 238000010586 diagram Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K35/00—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
- H02K35/02—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving magnets and stationary coil systems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/34—Reciprocating, oscillating or vibrating parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1869—Linear generators; sectional generators
- H02K7/1876—Linear generators; sectional generators with reciprocating, linearly oscillating or vibrating parts
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Abstract
The invention relates to the technical field of switches, in particular to a power generation structure, which comprises a soft magnetic plate, a coil and a soft magnetic frame, wherein the soft magnetic plate is configured to be rotatably installed, the coil is arranged around the soft magnetic plate, the soft magnetic frame comprises a fixing part and a bending part, a first permanent magnet is arranged at a first end of the fixing part, a second permanent magnet is arranged at a second end of the fixing part, an avoidance opening for accommodating rotation of the soft magnetic plate is arranged on the bending part, a first magnetic conduction plate is connected to the first permanent magnet, a first contact part is formed on the first magnetic conduction plate through bending, the first contact part is positioned on one side of the soft magnetic plate, a second magnetic conduction plate is connected to the second permanent magnet, and the second contact part is positioned on the other side of the soft magnetic plate after bending. The power generation structure provided by the invention is convenient to use, compact in structure, convenient to integrate into a module, high in power generation efficiency and high in induced current.
Description
Technical Field
The invention relates to the technical field of switches, in particular to a power generation structure and a door magnetic switch.
Background
With the continuous development of electronic technology, wireless technology plays an increasingly important role in intellectualization, wireless switches for controlling household appliances by using wireless technology are currently appeared, and the existing wireless switches can be divided into battery type wireless switches and self-generating type wireless switches, and the use of the wireless switches is greatly convenient for daily life of people.
However, the conventional wireless switch has the following problems:
1. the battery type wireless switch is provided with a rechargeable battery, the battery is required to be taken out and charged frequently because the switch is in a wireless connection state, and the battery is misjudged to be powered off when in use because a user forgets to charge frequently, so that the battery type wireless switch is inconvenient to use;
2. the magnetic circuit of the self-generating device in the existing self-generating wireless switch is complex, the manufacturing is inconvenient, and the manufacturing cost is high;
3. The existing self-generating device in the self-generating wireless switch is complex in structure, large in occupied space and inconvenient to integrate.
Disclosure of Invention
The invention provides a power generation structure which can generate power without installing a battery and is convenient to use, and the technical problem that a battery type wireless switch is inconvenient to use in the prior art is solved.
The technical scheme of the invention is as follows:
a power generation structure comprising:
a soft magnetic plate configured to be rotatably mounted;
a coil disposed around the soft magnetic plate;
The soft magnetic frame comprises a fixed part and a bending part, wherein a first permanent magnet is arranged at the first end of the fixed part, a second permanent magnet is arranged at the second end of the fixed part, and an avoidance opening for allowing the soft magnetic plate to rotate is formed in the bending part;
the first permanent magnet is connected with a first magnetic conduction plate, the first magnetic conduction plate is bent to form a first contact part, and the first contact part is positioned at one side of the soft magnetic plate;
The second permanent magnet is connected with a second magnetic conduction plate, a second contact part is formed on the second magnetic conduction plate after bending, and the second contact part is positioned on the other side of the soft magnetic plate;
In an initial state, two ends of the soft magnetic plate form a first closed magnetic circuit through the first contact part, the first permanent magnet and the soft magnetic frame, when the soft magnetic plate rotates, two ends of the soft magnetic plate form a second closed magnetic circuit through the second contact part, the second permanent magnet and the soft magnetic frame, and the direction of a magnetic induction line passing through the soft magnetic plate in the first closed magnetic circuit is opposite to the direction of a magnetic induction line passing through the soft magnetic plate in the second closed magnetic circuit.
In the power generation structure, in an initial state, the soft magnetic plate is static, the number of magnetic induction lines passing through the soft magnetic plate is unchanged, the magnetic field is unchanged, no current is induced in the coil, when the soft magnetic plate rotates, the number of the magnetic induction lines passing through the soft magnetic plate is changed, the magnetic induction lines are changed from existence to nonexistence, a changed magnetic field is generated, and then the current starts to be generated in the coil.
Further, the soft magnetic frame is an L-shaped soft magnetic frame, the vertical part of the L-shaped soft magnetic frame is formed into the fixing part, the horizontal and vertical part of the L-shaped soft magnetic frame is formed into the bending part, the first surface of the fixing part is positioned on one side of the soft magnetic plate, and the second surface of the fixing part is provided with the first permanent magnet and the second permanent magnet. According to the invention, the soft magnetic frame is L-shaped, and the first permanent magnet and the second permanent magnet are arranged on the same surface of the vertical part of the L-shaped soft magnetic frame, so that compared with the mode that the first permanent magnet and the second permanent magnet are respectively arranged on two surfaces of the vertical part or two sides of the soft magnetic plate, the size of the whole power generation structure in the transverse direction is reduced, and the structure is more compact.
Further, the middle part of the soft magnetic plate is configured as a rotation fulcrum, at least a part of one end of the soft magnetic plate passes through the avoidance port to form an operation end, and the other end of the soft magnetic plate is formed as a free end. Thus, the operation end of the soft magnetic plate can be pressed, and the soft magnetic plate can rotate around the rotation pivot to provide mechanical energy.
Further, the first magnetic conductive plate extends along the length direction of the fixing portion and protrudes from the end of the fixing portion, and then extends toward the soft magnetic plate to form the first contact portion.
Further, the second magnetic conductive plate extends along the width direction of the fixing portion and then is bent toward the soft magnetic plate to form a C-shaped bent section, one end of the C-shaped bent section extends along the length direction of the fixing portion and is parallel to the first face of the fixing portion, and the extending end is bent at a position opposite to the first contact portion to form a second contact portion.
According to the invention, the second contact part is formed on the other side of the soft magnetic plate after the second magnetic plate is bent for many times, so that compared with the case that the second contact part is bent on the outer side of the first magnetic plate, the transverse dimension of the whole power generation structure is saved, and the whole structure is more compact.
Furthermore, the operation end is connected with the buffer piece, and the buffer piece is arranged in the invention to improve the pressing hand feeling.
In another aspect of the present invention, there is provided a door magnetic switch including:
A housing within which the power generation structure of any one of the above and a drive plate configured for rotational mounting are integrated, the drive plate for driving the soft magnetic plate to deflect;
The door plate is hinged on the carrier and positioned on one side of the driving plate, and the driving plate is driven to deflect by the aid of the magnetic assembly. When the door plate is closed, the driving plate is driven to deflect through the magnetic component, the driving plate drives the soft magnetic plate to rotate, and current is induced in the coil after a changed magnetic field is generated.
Further, the driving plate is an L-shaped driving plate, a first section of the L-shaped driving plate is parallel to a first surface of the fixing part of the soft magnetic frame, the L-shaped driving plate extends towards the soft magnetic plate to form a second section, the end part of the second section is formed into a driving end, and the driving end drives the soft magnetic plate to deflect.
Optionally, the magnetic assembly includes at least one third permanent magnet, the third permanent magnet being disposed at a first end of the first section of the drive plate, the third permanent magnet having a magnetic property near a face of the door panel that is the same as the magnetic property of the door panel.
Optionally, the magnetic assembly includes at least one fourth permanent magnet disposed at a second end of the first section of the drive plate, the fourth permanent magnet and the door panel being attracted to each other. The invention realizes the driving of the door plate to the driving plate by arranging the magnetic component and utilizing the principle that like poles repel and opposite poles attract.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects:
(1) In the power generation structure, in an initial state, the soft magnetic plate is static, the number of magnetic induction lines passing through the soft magnetic plate is unchanged, the magnetic field is unchanged, no current is induced in the coil, when the soft magnetic plate rotates, the number of the magnetic induction lines passing through the soft magnetic plate is changed, the magnetic induction lines are changed from existence to non-existence, a changed magnetic field is generated, and then the current is generated in the coil; meanwhile, as the magnetic circuit is formed into a closed magnetic circuit, the conversion efficiency of converting mechanical energy into electric energy is high, so that the power generation efficiency of the whole power generation structure is high, and the induction current is large; when the power generation structure of the embodiment is applied to a wireless switch, self power generation can be realized, a battery is not required to be installed, the magnetic circuit is simple, the manufacturing is convenient, and the cost is low;
(2) According to the invention, the soft magnetic frame is L-shaped, and the first permanent magnet and the second permanent magnet are arranged on the same surface of the vertical part of the L shape, so that compared with the mode that the first permanent magnet and the second permanent magnet are respectively arranged on two surfaces of the vertical part or two sides of the soft magnetic plate, the size of the whole power generation structure in the transverse direction is reduced, and the structure is more compact. In practical application, the transverse direction of the power generation structure of the embodiment is equal to the thickness direction of the wireless switch, the wireless switch needs to be designed to be thinner and thinner at present, and the smaller the dimension of the transverse direction is, the thinner the thickness of the switch in practical application is, so that the design requirement is met.
Drawings
Fig. 1 is a schematic view of a power generation structure in an initial state according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a power generation structure according to a first embodiment of the present invention after a soft magnetic plate rotates;
FIG. 3 is a schematic view of another embodiment of a power generation structure according to the first embodiment of the present invention;
fig. 4 is a cross-sectional view of a coil support according to a first embodiment of the present invention;
Fig. 5 is a schematic structural diagram of a door magnetic switch according to a second embodiment of the present invention;
FIG. 6 is an exploded view of a door switch according to a second embodiment of the present invention at a first viewing angle;
FIG. 7 is an exploded view of a door switch according to a second embodiment of the present invention at a second viewing angle;
FIG. 8 is a schematic view illustrating an installation position of a fixing rod according to a second embodiment of the present invention;
fig. 9 is a schematic structural diagram of a door switch in an initial state according to a second embodiment of the present invention;
fig. 10 is a schematic structural diagram of a door magnetic switch according to a second embodiment of the present invention after a soft magnetic plate rotates;
FIG. 11 is a schematic diagram of a door switch according to a third embodiment of the present invention;
fig. 12 is a schematic structural diagram of a door switch according to a fourth embodiment of the present invention.
Wherein,
A soft magnetic plate 1, an operation end 11, an elastic member 12, a buffer member 13, a fixing plate 14;
coil 2, coil holder 21, winding groove 211, support 212, fixing rod 22;
Soft magnetic frame 3, fixing portion 31, first permanent magnet 311, first magnetic conductive plate 312, first contact portion 3121, second permanent magnet 313, second magnetic conductive plate 314, second contact portion 3141, c-shaped bending section 3142, extending end 3143, bending portion 32, avoiding opening 321, first avoiding surface 3211, second avoiding surface 3212;
the driving device comprises a shell 4, a driving plate 41, a driving end 411, a third permanent magnet 42, a fourth permanent magnet 43 and a rotating shaft 44;
And a door panel 5.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface on … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.
Embodiment one:
As shown in fig. 1-2, the power generation structure of the present embodiment includes a soft magnetic plate 1 and a coil 2 disposed around the soft magnetic plate 1, wherein the soft magnetic plate 1 is configured to be rotatably mounted and the coil 2 is configured to be fixedly mounted. The power generation structure of the embodiment further includes a soft magnetic frame 3, the soft magnetic frame 3 includes a fixing portion 31 and a bending portion 32 bent from the fixing portion 31 to the soft magnetic plate 1, the fixing portion 31 is fixedly disposed at one side of the soft magnetic plate 1 and the coil 2, a first permanent magnet 311 is disposed at a first end of the fixing portion 31, a second permanent magnet 313 is disposed at a second end of the fixing portion 31, and the first permanent magnet 311 and the second permanent magnet 313 can be magnetically adsorbed to the fixing portion 31 by themselves or can be fixed to the fixing portion 31 by means of screwing, bonding, or the like; the bending part 32 is located at the bottom of the coil 2, and an avoiding opening 321 for accommodating the rotation of the soft magnetic plate 1 is arranged on the bending part 32.
Further, in the present embodiment, a first magnetic conductive plate 312 is connected to the first permanent magnet 311, and a second magnetic conductive plate 314 is connected to the second permanent magnet 313, where the first magnetic conductive plate 312 is bent to form a first contact portion 3121, and the first contact portion 3121 is located at one side of the soft magnetic plate 1; the second permanent magnet 313 is connected with a second magnetic conductive plate 314, and the second magnetic conductive plate 314 is bent to form a second contact portion 3141, and the second contact portion 3141 is located on the other side of the soft magnetic plate 1.
Further, the first contact portion 3121 and the second contact portion 3141 are provided with opposite magnetic properties, specifically, as shown in fig. 1-2, the inner side of the first permanent magnet 311 is an N pole, the outer side is an S pole, and the inner side of the second permanent magnet 313 is an S pole, and the outer side is an N pole, so that the first contact portion 3121 corresponds to the S pole, the second contact portion 3141 corresponds to the N pole, and the magnetic properties of the two are opposite.
In the initial state, as shown in fig. 1, the upper end of the soft magnetic plate 1 is in contact with the first contact portion 3121, the lower end is in contact with the avoidance port 321, the magnetic field direction passes through the soft magnetic frame 3 from the inner side of the first permanent magnet 311, then passes through the soft magnetic plate 1 from bottom to top, and finally returns to the outer side of the first permanent magnet 311 from the first contact portion 3121 to form a first closed magnetic circuit; when the soft magnetic plate 1 rotates, as shown in fig. 2, the upper end of the soft magnetic plate 1 contacts with the second contact portion 3141, and the lower end contacts with the avoiding opening 321, the magnetic field direction passes through the second magnetic conductive plate 314 from the outer side of the second permanent magnet 313, then passes through the soft magnetic plate 1 from top to bottom, and finally returns to the inner side of the second permanent magnet 313 from the soft magnetic plate 1 to form a second closed magnetic circuit, wherein the magnetic induction line direction of the first closed magnetic circuit passing through the soft magnetic plate 1 is opposite to the magnetic induction line direction of the second closed magnetic circuit passing through the soft magnetic plate 1. Like this after soft magnetic plate 1 rotates, the magnetic field direction in the soft magnetic plate 1 has changed, and the magnetic induction line in the soft magnetic plate 1 is from having to no to having again for produce induced current in the coil 2, turn into the mechanical energy that the soft magnetic plate 1 rotated and produce into the electric energy, alright realization electricity generation, moreover because form into closed magnetic circuit, make the conversion efficiency that mechanical energy changed into the electric energy high, thereby make whole power generation structure generating efficiency high, induced current is big.
Of course, the first contact portion 3121 may be configured as an N pole, the second contact portion 3141 may be configured as an S pole, and as shown in fig. 3, in another implementation of the present embodiment, the inner side of the first permanent magnet 311 is an S pole, the outer side is an N pole, and the inner side of the second permanent magnet 313 is an N pole, and the outer side is an S pole.
As can be seen from the above, in the power generation structure of the present embodiment, in the initial state, the soft magnetic plate 1 is stationary, the number of magnetic induction lines passing through the soft magnetic plate 1 is unchanged, the magnetic field is unchanged, no current is induced in the coil 2, and when the soft magnetic plate 1 rotates, the number of magnetic induction lines passing through the soft magnetic plate 1 is changed, the magnetic induction lines are changed from existence to nonexistence, a changed magnetic field is generated, and then the current is generated in the coil 2. When the power generation structure of the embodiment is applied to the wireless switch, self power generation can be realized, a battery is not required to be installed, the magnetic circuit is simple, the manufacturing is convenient, and the cost is low.
As shown in fig. 1-2, the soft magnetic frame 3 of the present embodiment is an L-shaped soft magnetic frame, the vertical portion of the L-shaped soft magnetic frame is formed as the fixing portion 31, the horizontal portion of the L-shaped soft magnetic frame is formed as the bending portion 32, the first surface, i.e., the inner side surface of the fixing portion 31 is located at one side of the soft magnetic plate 1, and the second surface, i.e., the outer side surface of the fixing portion 31, is provided with the first permanent magnet 311 and the second permanent magnet 313, however, in other embodiments, the first permanent magnet 311 and the second permanent magnet 313 may be provided at the inner side surface of the fixing portion 31. In this embodiment, the soft magnetic frame 3 is configured in an L shape, and the first permanent magnet 311 and the second permanent magnet 313 are disposed on the same surface of the vertical portion of the L shape, so that compared with the manner in which the first permanent magnet 311 and the second permanent magnet 313 are disposed on two surfaces of the vertical portion or on two sides of the soft magnetic plate 1, the size of the whole power generation structure in the transverse direction is reduced, and the structure is more compact. In practical application, the transverse direction of the power generation structure of the embodiment is equal to the thickness direction of the wireless switch, the wireless switch needs to be designed to be thinner and thinner at present, and the smaller the dimension of the transverse direction is, the thinner the thickness of the switch in practical application is, so that the design requirement is met.
Further, the middle portion of the soft magnetic plate 1 of the present embodiment is configured as a pivot point, at least a part of one end of the soft magnetic plate 1 passes through the escape port 321 to form the operation end 11, and the other end of the soft magnetic plate 1 is formed as a free end. Thus, the operation end 11 of the soft magnetic plate 1 is pressed, etc., so that the soft magnetic plate 1 rotates around the rotation pivot to provide mechanical energy.
Further, the first magnetically permeable plate 312 extends along the length direction of the fixed portion 31 and protrudes from the end of the fixed portion 31, and then extends toward the soft magnetic plate 1 to form the first contact portion 3121; the second magnetic conductive plate 314 extends along the width direction of the fixed portion 31 and then is bent toward the soft magnetic plate 1 to form a C-shaped bent section 3142, one end of the C-shaped bent section 3142 extends upward along the length direction of the fixed portion 31 and is parallel to the first face of the fixed portion 31, and extends to form an extended end 3143, and the extended end 3143 is bent at a position opposite to the first contact portion 3121 to form a second contact portion 3141. In this embodiment, the second contact portion 3141 is formed on the other side of the soft magnetic plate 1 after the second magnetic conductive plate 314 is bent for multiple times, so that the transverse dimension of the whole power generation structure is saved compared with the bending of the left side of the first magnetic conductive plate 312, and the whole power generation structure is more compact.
As shown in fig. 1-2, the power generation structure of the present embodiment further includes a coil support 21, the coil support 21 is configured to be fixedly mounted, the soft magnetic plate 1 is inserted into the coil support 21, a winding slot 211 is provided outside the coil support 21, and the coil 2 is wound around the winding slot 211, so that the coil 2 is configured to be fixedly mounted.
As shown in fig. 4, two supporting portions 212 are symmetrically provided at the center of the inner wall of the coil support 21 of the present embodiment, and the two supporting portions 212 support the soft magnetic plate 1 so that the soft magnetic plate 1 can rotate around the supporting portions 212 and can clamp the soft magnetic plate 1 to prevent it from falling.
Preferably, in the vertical direction, the distance between the first end of the coil support 21 and the first magnetic conductive plate 312 in the present embodiment is equal to the distance between the second end of the coil support 21 and the bent portion 32 of the soft magnetic frame 3; further, the avoidance port 321 of the soft magnetic frame 3 in this embodiment includes a first avoidance surface 3211 and a second avoidance surface 3212, where the first avoidance surface 3211 is located on one side of the soft magnetic plate 1, the second avoidance surface 3212 is located on the other side of the soft magnetic plate 1, and the distance between the first contact portion 3121 and the second contact portion 3141 is equal to the distance between the first avoidance surface 3211 and the second avoidance surface 3212, so that when the soft magnetic plate 1 rotates, the first contact portion 3121 and the second avoidance surface 3212 can be contacted simultaneously to form a first closed magnetic circuit, or the second contact portion 3141 and the first avoidance surface 3211 can be contacted simultaneously to form a second closed magnetic circuit.
Further, as shown in fig. 1, the operation end 11 of the soft magnetic plate 1 of the present embodiment is provided with a buffer member 13, the buffer member 13 is a T-shaped metal sheet, and when in operation, the T-shaped metal sheet is pressed first, the T-shaped metal sheet is deformed and buffered in advance, and then the soft magnetic plate 1 starts to rotate again, so that the hand feeling during pressing can be increased. Further, the power generation structure of the present embodiment further includes a fixing plate 14 configured to be fixedly installed, the fixing plate 14 is fixed with an elastic member 12, the elastic member 12 may be a return spring, one end of the elastic member 12 is fixed with the fixing plate 14, the other end of the elastic member 12 is in contact with the buffer member 13, and the elastic member 12 is used for providing a return force for returning the soft magnetic plate 1.
In summary, the power generation structure provided in this embodiment has a compact structure, small occupied space, convenient integration into a module, high power generation efficiency and large induced current.
Embodiment two:
As shown in fig. 5-7, the door magnetic switch of this embodiment includes a housing 4 built in a carrier, which may be a refrigerator or a door frame, etc., in which a power generation structure of the first embodiment and a driving plate 41 are integrated in the housing 4, the driving plate 41 is configured to be rotatably mounted, the driving plate 41 is used to drive the soft magnetic plate 1 to deflect, specifically, as shown in fig. 8, a coil bracket 21 in the power generation structure is fixedly connected to the housing 4 through a fixing rod 22, the soft magnetic frame 3 is also fixedly connected directly to the housing 4, the driving plate 41 is an L-shaped driving plate, in an initial state, a first section of the L-shaped driving plate is parallel to a first surface of a fixing portion 31 of the soft magnetic frame 3, a rotation shaft 44 is hinged to a middle portion of the first section of the L-shaped driving plate, so that the driving plate 41 may rotate around the rotation shaft 44, the L-shaped driving plate extends toward the soft magnetic plate 1, an end 411 is formed at an end of the second section, and the driving end 411 drives the soft magnetic plate 1 to deflect through a buffer 13.
Further, the door magnetic switch of the present embodiment further includes a door panel 5, where the door panel 5 may be hinged on the carrier, and the door panel 5 is located at one side of the driving plate 41, and the door panel 5 drives the driving plate 41 to deflect by means of the magnetic component. Specifically, the magnetic assembly of the present embodiment includes at least one third permanent magnet 42, where the third permanent magnet 42 is disposed at a first end of the first section of the driving plate 41, the magnetism of a surface of the third permanent magnet 42 near the door panel 5 is the same as that of the door panel 5, as shown in fig. 5, the left end of the third permanent magnet 42 is S-pole, the right end is N-pole, and the left end of the door panel 5 is N-pole, so that the right end of the third permanent magnet 42 is the same as that of the left end of the door panel 5, and the third permanent magnet 42 and the door panel 5 repel each other due to the repulsion of the same polarity. Of course, in other embodiments, the left end of the third permanent magnet 42 is N-pole, the right end is S-pole, and the left end of the door panel 5 is S-pole.
Thus, when the door panel 5 of the present embodiment is closed towards the third permanent magnet, the driving plate 41 is driven to deflect clockwise by the third permanent magnet, the driving plate 41 drives the soft magnetic plate 1 to rotate, and after generating a varying magnetic field, a current is induced in the coil 2; when the door panel 5 of the present embodiment is opened away from the third permanent magnet, the elastic member 12 pushes the soft magnetic plate 1 to rotate and reset counterclockwise, and the buffer member 13 pushes the driving plate 41 to rotate and reset counterclockwise, so that a varying magnetic field is generated, and a current is induced in the coil 2.
In an actual application scene, the carrier may be a refrigerator, the refrigerator is internally embedded with the shell 4, and the door panel 5 may be a refrigerator door, so that when the refrigerator door is opened, the door magnetic switch is changed from the state shown in fig. 10 to the state shown in fig. 9, the coil 2 generates current, a door opening feedback signal is given to the controller, and the controller controls the lamp in the refrigerator to be on; when the refrigerator door is closed, the door magnetic switch returns to the state shown in fig. 10 from the state shown in fig. 9, and the coil 2 also generates current to give a door closing feedback signal to the controller, and the controller controls the lamp in the refrigerator to be turned off.
In another practical application scenario, the carrier may be a door frame, and the door panel 5 may be a burglarproof door matched with the door frame, so that when the door is opened, the door magnetic switch is changed from the state shown in fig. 10 to the state shown in fig. 9, the coil 2 generates current, the outlet end of the coil 2 can be connected with a wireless module, a door opening signal is transmitted to the controller through the wireless module, and the controller controls the entrance lamp to be on; when the door is closed, the door magnetic switch returns to the state shown in fig. 10 from the state shown in fig. 9, the coil 2 also generates current, a door closing signal is given to the controller, the controller controls the indoor lamp to be turned off, the automatic on-off of the entrance lamp is realized, and the entrance lamp is used for temporary illumination when entering and exiting the door at night.
In still another practical application scenario, the carrier may be a door frame, and the door panel 5 may be an anti-theft door matched with the door frame, and the user may set an anti-theft mode after going out, so, once the door is opened, the door magnetic switch is changed from the state shown in fig. 10 to the state shown in fig. 9, the coil 2 generates current, the wire outlet end of the coil 2 can be connected with the wireless module, the wireless module transmits a door opening signal to the controller, the controller controls the alarm to alarm, and meanwhile, the alarm signal can be sent to the mobile phone of the user through the network. Of course, the door magnetic switch of the present embodiment may also be applied to a safe or a drawer.
As can be seen from the above, in this embodiment, the mechanical energy generated by the rotation of the door panel 5 is converted into electrical energy, and when the door panel 5 is opened or closed, the power generation structure can generate power, and give a control signal to the controller, so that the linkage of opening the door and turning on the lamp or alarming is realized without manual operation again.
Embodiment III:
As shown in fig. 11, the difference between the door magnetic switch of the present embodiment and the second embodiment is that the magnetic assembly of the present embodiment includes at least one fourth permanent magnet 43, but does not include the third permanent magnet 42 of the second embodiment, the fourth permanent magnet 43 is disposed at the second end of the first section of the driving plate 41, the fourth permanent magnet 43 and the door plate 5 attract each other, specifically, as shown in fig. 11, the left end of the fourth permanent magnet 43 is N-pole, the right end is S-pole, and the left end of the door plate 5 is N-pole, or the door plate 5 is an iron-containing metal plate without magnetism as a whole, so that the right end of the fourth permanent magnet 43 and the left end of the door plate 5 are different in magnetism, and the third permanent magnet 42 and the door plate 5 attract each other due to the opposite attraction, and when the door plate 5 is closed, the soft magnetic plate 1 is rotated clockwise.
Embodiment four:
As shown in fig. 12, the difference between the door magnetic switch of the present embodiment and the second and third embodiments is that the magnetic assembly of the present embodiment includes a third permanent magnet 42 and a fourth permanent magnet 43, and the present embodiment sets the third permanent magnet 42 and the fourth permanent magnet 43 to drive the soft magnetic plate 1 to rotate at the same time, so that when the door panel 5 is closed, the driving effect on the soft magnetic plate 1 is better, and the motion of the soft magnetic plate 1 is quicker.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (7)
1. A power generation structure, characterized by comprising:
A soft magnetic plate (1), the soft magnetic plate (1) being configured to be rotatably mounted, and an operation end (11) being formed at one end of the soft magnetic plate (1), the operation end (11) being connected with a buffer member (13);
-a coil (2), the coil (2) being arranged around the soft magnetic plate (1);
The soft magnetic frame (3), the soft magnetic frame (3) includes fixed part (31) and kink (32), the first end of fixed part (31) is equipped with first permanent magnet (311), the second end of fixed part (31) is equipped with second permanent magnet (313), be equipped with on kink (32) and hold soft magnetic plate (1) pivoted dodge mouth (321), soft magnetic frame (3) are L shape soft magnetic frame, L shape soft magnetic frame's vertical portion forms for fixed part (31), L shape soft magnetic frame's horizontal straight portion forms for kink (32), the first face of fixed part (31) is located one side of soft magnetic plate (1), the second face of fixed part (31) disposes first permanent magnet (311) and second permanent magnet (313);
The first permanent magnet (311), the first permanent magnet (311) is connected with a first magnetic conduction plate (312), the first magnetic conduction plate (312) is bent to form a first contact part (3121), and the first contact part (3121) is positioned at one side of the soft magnetic plate (1);
The second permanent magnet (313), the second permanent magnet (313) is connected with a second magnetic conduction plate (314), the second magnetic conduction plate (314) is bent to form a second contact part (3141), and the second contact part (3141) is positioned on the other side of the soft magnetic plate (1);
The second magnetic conductive plate (314) extends along the width direction of the fixed portion (31) and is then bent toward the soft magnetic plate (1) to form a C-shaped bent section (3142), one end of the C-shaped bent section (3142) extends along the length direction of the fixed portion (31) and is parallel to the first surface of the fixed portion (31), and the extending end (3143) is bent at a position opposite to the first contact portion (3121) to form a second contact portion (3141);
In an initial state, two ends of the soft magnetic plate (1) form a first closed magnetic circuit through the first contact part (3121), the first permanent magnet (311) and the soft magnetic frame (3), when the soft magnetic plate (1) rotates, two ends of the soft magnetic plate (1) form a second closed magnetic circuit through the second contact part (3141), the second permanent magnet (313) and the soft magnetic frame (3), and a magnetic induction line direction passing through the soft magnetic plate (1) in the first closed magnetic circuit is opposite to a magnetic induction line direction passing through the soft magnetic plate (1) in the second closed magnetic circuit.
2. A power generation structure according to claim 1, wherein a middle portion of the soft magnetic plate (1) is configured as a pivot, at least a portion of one end of the soft magnetic plate (1) passes through the escape opening (321) to form an operation end (11), and the other end of the soft magnetic plate (1) is formed as a free end.
3. A power generation structure according to claim 2, wherein the first magnetic conductive plate (312) extends along the length direction of the fixed portion (31) and protrudes from the end of the fixed portion (31) and then extends toward the soft magnetic plate (1) to form the first contact portion (3121).
4. A door magnetic switch, comprising:
-a housing (4) built into a carrier, the housing (4) integrating therein a power generating structure according to any of claims 1-3 and a drive plate (41), the drive plate (41) being configured for rotational mounting, the drive plate (41) being adapted for driving the soft magnetic plate (1) to deflect;
the door plate (5) is hinged on the carrier and located on one side of the driving plate (41), and the door plate (5) drives the driving plate (41) to deflect by means of a magnetic assembly.
5. A door magnetic switch according to claim 4, characterized in that the driving plate (41) is an L-shaped driving plate, a first section of the L-shaped driving plate is parallel to a first surface of the fixed part (31) of the soft magnetic frame (3), the L-shaped driving plate extends towards the soft magnetic plate (1) with a second section, an end of the second section is formed as a driving end (411), and the driving end (411) drives the soft magnetic plate (1) to deflect.
6. A door magnetic switch according to claim 5, characterized in that the magnetic assembly comprises at least one third permanent magnet (42), the third permanent magnet (42) being arranged at a first end of the first section of the drive plate (41), the magnetic properties of the side of the third permanent magnet (42) close to the door plate (5) being identical to the magnetic properties of the door plate (5).
7. A door magnetic switch according to claim 6, characterized in that the magnetic assembly comprises at least one fourth permanent magnet (43), the fourth permanent magnet (43) being arranged at the second end of the first section of the drive plate (41), the fourth permanent magnet (43) and the door panel (5) being attracted to each other.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010924927.XA CN112152415B (en) | 2020-09-05 | 2020-09-05 | Power generation structure and door magnetic switch |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010924927.XA CN112152415B (en) | 2020-09-05 | 2020-09-05 | Power generation structure and door magnetic switch |
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| CN112152415A CN112152415A (en) | 2020-12-29 |
| CN112152415B true CN112152415B (en) | 2024-06-28 |
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| JP6358824B2 (en) * | 2014-03-24 | 2018-07-18 | 国立大学法人信州大学 | Power generation device |
| CN108768126B (en) * | 2018-06-12 | 2020-01-07 | 武汉领普科技有限公司 | Self-generating device |
| CN208539771U (en) * | 2018-07-20 | 2019-02-22 | 比亚迪股份有限公司 | Power generator and wireless switching |
| CN111478548A (en) * | 2020-06-01 | 2020-07-31 | 常州工学院 | C-type double-magnet micro power generation device and wireless switch with same |
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